# name : ggplot2 facet_wrap
# key : ggplot2.facet_wrap
# key : facet_wrap@ggplot2
# contributor : Shuguang Sun
# --
facet_wrap(${1:$$(yas-choose-value '("vars($0)" "~ f1 + f2"))}${2:, nrow = ${3:1}${4:, ncol = 1, scales = "free_x"}})